Netskope 安全漏洞(CVE-2022-4149)
CVE编号
CVE-2022-4149利用情况
暂无补丁情况
N/A披露时间
2022-11-28漏洞描述
The Netskope client service (prior to R96) on Windows runs as NT AUTHORITY\SYSTEM which writes log files to a writable directory (C:\Users\Public\netSkope) for a standard user. The files are created and written with a SYSTEM account except one file (logplaceholder) which inherits permission giving all users full access control list. Netskope client restricts access to this file by allowing only read permissions as a standard user. Whenever the Netskope client service restarts, it deletes the logplaceholder and recreates, creating a race condition, which can be exploited by a malicious local user to create the file and set ACL permissions on the file. Once the file is created by a malicious user with proper ACL permissions, all files within C:\Users\Public\netSkope\ becomes modifiable by the unprivileged user. By using Windows pseudo-symlink, these files can be pointed to other places in the system and thus malicious users will be able to elevate privileges.解决建议
"将组件 netskope 升级至 100 及以上版本"
参考链接 |
|
|---|---|
| https://www.netskope.com/company/security-compliance-and-assurance/security-a... |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | netskope | netskope | * | Up to (excluding) 100 | |||||
- 攻击路径 本地
- 攻击复杂度 高
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-367 | 检查时间与使用时间(TOCTOU)的竞争条件 |
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